JP2007116542A - Incoming call control apparatus and incoming call control method - Google Patents

Abstract

An object of the present invention is to prevent unwanted calls.
An incoming call control device 100 for preventing incoming calls from a nuisance call to a telephone 6, a list storage unit 24 for storing a black list and a white list for each user, and accepting a call from the telephone 6. A call reception unit 22; a call determination unit 23 for determining whether the caller telephone number is included in the user's black list or white list; and a telephone 6 having a telephone number not included in either list. In response to a call from the telephone 6 and receiving the voice data input from the telephone 6, a filter storage unit 282 for storing the nuisance call identification data, and the input voice data based on the nuisance call identification data. The nuisance call determination unit 271 that determines whether or not the content is a nuisance call, and when the content of the input voice data is a nuisance call, And configured to include a determination result reflection unit 30 to be registered in the list.
[Selection] Figure 2

Description

  The present invention relates to a technique for preventing unwanted calls.

  Conventionally, as a method for preventing unwanted calls, there is a method in which a black list or a white list is created in advance and an incoming call acceptance / rejection decision is made based on this list. This black list is a list showing the telephone numbers of the other party who rejects the incoming call, and the white list is a list showing the telephone numbers of the other party who accepts the incoming call.

  There are a number display (registered trademark) service, a nuisance call rejection service, and the like as a method of preventing the nuisance call using the black list. This Number Display (registered trademark) service is a service in which the telephone number of the other party who has called is displayed on a display such as a telephone before answering the call. As a part of this service, if the phone number of the other party that the user rejects is registered in advance in the phone, when a call is made from the registered phone number that is rejected, a special response message will be sent. Providing services that respond. The spam call rejection service is a service for rejecting an incoming call from a telephone number when a designated number is entered and registered after the telephone call ends.

Furthermore, Patent Document 1 discloses a technique for rejecting spam mail distribution using a white list. Patent Document 2 discloses a technology that can select whether to reject an e-mail from a partner who does not want to receive using a black list or to receive only an e-mail from a specific partner using a white list. Has been.
JP 2003-141043 A Japanese Patent Laid-Open No. 2001-156834

  A method for preventing unwanted telephone calls by applying the technology described in Patent Document 1 and Patent Document 2 to the telephone is also conceivable. However, the method using the black list described above has a problem that calls from telephone numbers other than the black list cannot be rejected. That is, there is a possibility that a nuisance call may be received from an unregistered phone number in the black list. In the method using the white list, telephone numbers other than the white list cannot be received at all. In other words, even a call from a telephone number other than the white list may not be a nuisance call, and it is inconvenient to make such a call subject to call rejection. In addition, there is a method in which the user sets an answering machine on the phone and responds with an answering machine for bothersome calls, but the user himself / herself has to judge whether it is a nuisance call by listening to all answering messages. Therefore, there is a problem that the burden on the user is large.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an incoming call control device and the like that solve the above-described problems and reduce the burden on the user regarding annoying calls.

  In order to solve the above-described problems, the present invention provides an incoming call control device for preventing incoming calls to a predetermined telephone, and for each telephone number of the telephone, a caller telephone number that does not make an incoming call to the telephone A list storage unit that stores a black list indicating a caller and a white list that indicates a caller telephone number that performs an incoming call to the telephone; a call reception unit that receives a call from the telephone via a telephone network; A call determination unit that determines whether a caller telephone number in the call is included in the blacklist or the whitelist of a callee telephone number in the call; A call receiving unit that receives a call from a telephone with a telephone number not included in the white list and receives voice data input from the caller telephone, and a character string data included in a nuisance call. A filter storage unit for storing annoying phone identification data indicating data, and annoying phone determination for determining whether or not the content of the voice data is annoying phone based on the presence or absence of a character string indicated in the annoying phone identification data And a determination result reflecting unit that registers the caller telephone number in the black list when the content of the voice data is determined to be a nuisance call in the nuisance call determination unit.

  According to this configuration, the incoming call control device receives a call from a telephone that is not registered in the blacklist or whitelist as a proxy, and if the telephone content is a nuisance call, the telephone number of the caller is set. Since it is registered in the black list, it can effectively prevent unwanted calls.

  According to the present invention, the incoming call control device according to claim 1 further includes a call transfer unit that transfers the call to a destination telephone, and the call determination unit has a caller telephone number in the call. , When it is determined that the call destination telephone number in the call is included in the black list, the call is discarded, and the call source telephone number in the call is the call destination telephone number in the call When it is determined that the call is included in the white list, the call transfer unit is instructed to transfer the call to a call destination telephone.

  According to this configuration, the call from the telephone registered in the black list is not transferred to the call destination telephone, but the call from the telephone registered in the white list is transferred.

  In the present invention, when the incoming call control device according to claim 1 or 2 determines that the content of the voice data is not a nuisance call in the nuisance call determination unit, the voice data is converted into text. And a transmission unit for transmitting the generated transmission data to a terminal device of a user of the call destination telephone set.

  According to this configuration, each user can confirm the contents of a telephone call from a telephone that is not registered in the white list or the black list by text data. That is, the user can confirm the contents of a telephone that may be a nuisance call without directly listening to the voice.

  In the present invention, when the incoming call control device according to claim 1 or 2 determines that the content of the voice data is not a nuisance call in the nuisance call determination unit, the voice data is converted into text. And a data creation unit for creating transmission data including information prompting to select whether or not to register the caller telephone number in the blacklist, and the created transmission data for the callee A transmission unit that transmits to a terminal device of a telephone user; and a reception unit that receives, from the terminal device, a selection input as to whether or not to register the caller telephone number in the blacklist, The determination result reflecting unit, when receiving a selection input for registering the caller telephone number in the black list, registers the caller telephone number in the black list based on the selection input. It was formed.

  According to this configuration, the incoming call control device receives the determination result (determination result whether to register in the blacklist) whether or not the call is a nuisance call transmitted from the user terminal device, and based on this result, the caller Phone numbers can be registered in the black list. That is, the user can reflect his / her judgment result in the black list.

  In the present invention, when the incoming call control device according to claim 1 or 2 determines that the content of the voice data is not a nuisance call in the nuisance call determination unit, the voice data is converted into text. A data creation unit for creating transmission data including information prompting to select whether the caller telephone number is registered in the black list or the white list, and the created transmission data A transmission unit that transmits to a terminal device of a user of the call destination telephone and a selection input for registering the caller telephone number in the black list or the white list from the terminal device And a determination result reflecting unit that selects the caller telephone number from the black list or the white list based on the selection input. It was configured to register in person.

  According to this configuration, the incoming call control device receives a determination result whether or not it is a nuisance call transmitted from the user's terminal device (determination result whether to register in the white list or black list), Based on this result, the caller telephone number can be registered in the list. That is, the user can reflect his / her determination result in the list.

  According to the present invention, in the incoming call control device according to any one of claims 1 to 5, the nuisance call determination unit determines whether the input voice data is based on a feature amount of the input voice data. A nuisance call voice determination unit that determines whether the call is a nuisance call and outputs voice data that is determined not to be a nuisance call, and a voice processing unit that converts the output voice data into text data, Based on the presence / absence of a character string indicated in the nuisance call identification data in the converted text data, it is determined whether or not the content of the voice data is a nuisance call.

  According to this configuration, since the incoming call control device determines whether or not the call is a nuisance call by using both the voice and the character string, the determination accuracy of the nuisance call can be improved.

  The present invention provides a user information storage in which the incoming call control device according to any one of claims 3 to 6 stores user information indicating the user's e-mail address for each telephone number of the user. The data creation unit includes data obtained by converting the voice data into text when it is determined that the content of the voice data is not a nuisance call, and the electronic data of the user of the telephone number of the call destination An e-mail addressed to the e-mail address is created, and the transmission unit is configured to send the created e-mail via a network.

  According to this configuration, the user's terminal device can receive text data indicating the contents of the telephone by e-mail.

  According to the present invention, in the incoming call control device according to claim 7, the data creation unit is an electronic certificate of the caller telephone number read from a database storing an electronic certificate of the telephone number for each telephone number. The electronic mail with the signature of the caller telephone number is created based on the certificate.

  According to this configuration, the incoming call control device can confirm the validity of the caller telephone number and transmit the result to the user terminal device.

  The present invention is an incoming call control method using an incoming call control device for preventing an unwanted incoming call to a predetermined telephone, and for each telephone number of the telephone, a caller telephone number that does not make an incoming call to the telephone A list storage unit for storing a black list indicating a caller and a white list indicating a caller telephone number for receiving an incoming call to the telephone, and storing a nuisance call identification data indicating character string data included in the nuisance call The incoming call control device including a filter storage unit that receives a call from a telephone via a telephone line network, and a caller telephone number in the call is a call destination telephone number in the call Determining whether it is included in the black list or the white list; and telephones having telephone numbers not included in the black list or the white list The voice data is a nuisance call based on the step of accepting the voice data input from the calling telephone and the presence or absence of a character string indicated in the nuisance call identification data. And a step of registering the caller telephone number in the black list when it is determined that the content of the voice data is a nuisance call.

  According to this method, the incoming call control device receives a call from a telephone that is not registered in the blacklist or whitelist on behalf of the telephone, and if the telephone content is a nuisance call, the telephone number of the caller is set. Since it is registered in the black list, it can effectively prevent unwanted calls.

  The present invention provides the incoming call control device according to any one of claims 4 to 8, wherein the transmission unit transmits the black list stored in the list storage unit to another incoming call control device, The receiving unit receives a black list stored in the incoming call control device from another incoming call control device, and the determination result reflecting unit registers the received black list in the list storage unit.

  According to this configuration, the black lists can be exchanged between the incoming call control devices. That is, each incoming call control device can also obtain a black list from another incoming call control device (communication carrier), so that it is possible to improve the accuracy of filtering unwanted calls.

  According to the present invention, it is possible to prevent a nuisance call from being received by a user's telephone that uses the nuisance call prevention service. In addition, since the telephone number determined to be a nuisance call by analyzing the telephone contents on the determination processing server side is registered in the black list, it is possible to reduce the trouble for the user to create the black list. Further, if the determination processing server cannot determine whether or not it is a nuisance call, the contents are sent as text data to the terminal device, so that the user can also check the telephone contents other than the nuisance call. In addition, since the determination processing server can receive a determination result of whether the telephone number of the caller is registered in the black list or the white list from the terminal device, it is easy to create each list.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

FIG. 1 is a diagram showing the configuration of the nuisance call prevention system according to the present embodiment.
The nuisance call prevention system includes an incoming call control device 100 managed by a telecommunications carrier, a telephone 6 (6A, 6B, 6C, 6D), a terminal device 8, an IP (Internet Protocol) communication network 18 such as the Internet, It includes a PSTN (Public Switched Telephone Network) network 19 for connecting the telephones 6 to each other. Here, the terminal device 8 is described as being a terminal device of the user D (user of the telephone 6D). The terminal device 8 is realized by a computer that can communicate via the IP communication network 18. Also, an exchange (not shown) is installed between the telephone 6 and the PSTN network 19, and the telephones 6 are connected to each other by this exchange.

  The incoming call control device 100 controls connection between the telephones 6 via the exchange and the PSTN network 19. For example, when a call is received from the telephone 6B, the call is transferred to the telephone 6D. Such an incoming call control device 100 receives a call from the telephone 6 and determines whether the call is a nuisance call from the incoming call distribution device 14 that distributes incoming calls, and notifies the determination result. And a determination processing server 15.

  The incoming call distribution device 14 stores a black list and a white list used for incoming call distribution in a storage unit, and distributes incoming calls (calls) based on the list. This black list is a list showing the caller's telephone numbers that reject calls to the telephone 6 for each caller's telephone number (does not forward the call). It is the list | wrist which showed the telephone number of the call originator who makes the incoming call to the telephone set 6 of this telephone number for every call destination telephone number (it transfers a call). The incoming call distribution device 14 is realized by an exchange, a SIP (Session Initiation Protocol) server, or the like.

  Here, the telephone number of the telephone 6A is registered in the black list of the user D, the telephone number of the telephone 6B is registered in the white list of the user D, and the telephone number of the telephone 6C is white in the black list of the user D. The telephone number is not registered in the list. In such a case, the incoming call distribution device 14 does not transfer the call from the telephone 6A to the telephone 6D. On the other hand, a call from the telephone 6B is transferred to the telephone 6D. In addition, a call from the telephone 6 </ b> C is once transferred to the determination processing server 15 and received by the determination processing server 15. Then, the determination processing server 15 receives an input of a voice message from the telephone 6C, and determines whether the call is a nuisance call from the content of the input voice message. Here, when the determination processing server 15 determines that the telephone content from the telephone 6C is a nuisance call, the telephone number of the telephone 6C is registered in the black list. On the other hand, when the determination processing server 15 determines that the telephone content is not a nuisance call, it converts the telephone content (voice message content) from the telephone 6C into text data. Then, this text data is transmitted to the terminal device 8 of the user D via the IP communication network 18 by electronic mail. That is, the determination processing server 15 responds by proxy to the call from the telephone 6C, and transmits the text data of the voice message to the terminal device 8 as an electronic mail.

  In this e-mail, in addition to text data indicating the contents of the voice message, the user is prompted to select whether to register the telephone number of the sender of the message (calling source) in the black list or white list. Add a message. The terminal device 8 displays the received electronic mail on a display device (not shown) or the like, and accepts a selection input from the user D to register the telephone number of the telephone 6C in the black list or the white list. . The terminal device 8 transmits the result of the selection input to the determination processing server 15 via the IP communication network 18. When receiving the result of this selection input, the determination processing server 15 registers the telephone number of the telephone 6C in the black list or the white list based on the received result of the selection input.

  Note that the telephone 6 of the present embodiment may be a telephone installed in a company or a telephone installed in a private house. The telephone 6 may be a fixed telephone or a mobile phone. Furthermore, although the telephone 6 and the terminal device 8 will be described as separate devices, they may be information terminals having a call function and an e-mail transmission / reception function or a communication function with the determination processing server 15.

Next, the configuration of the incoming call control device 100 will be described with reference to FIG. FIG. 2 is a block diagram showing the function of the incoming call control device of FIG.
The incoming call control device 100 includes an incoming call distribution device 14 and a determination processing server 15.

  The incoming call distribution device 14 includes a list storage unit 24, a call reception unit 22, a call determination unit 23, and a call transfer unit 25 that transfers a call from the telephone set 6 to the callee telephone set 6.

  As described above, the list storage unit 24 stores a black list and a white list for each user. This black list indicates the telephone number of the caller that rejects incoming calls to the telephone 6 for each user (for each caller's telephone number). In this black list, for example, a telephone number of a company with a lot of sales by telephone is registered. In addition, the telephone number of the company hit with a predetermined keyword from the telephone directory database or the like may be registered as this telephone number, or the telephone number itself is not registered, but only the link information to the telephone directory database is registered. You may make it do. In addition, the white list indicates the telephone number of the caller that makes an incoming call to the telephone 6 with this telephone number for each telephone number of the callee (see Table 1).

  For example, in Table 1, the telephone number of the user with the user ID “xxx” is “aaa”, and the telephone 6 of this user does not respond to a call from the telephone 6 with the telephone number “bbb” ( "Reject incoming call" indicates that the call from the telephone 6 with the telephone number "ccc" is accepted.

The black list and the white list may be transmitted to the list storage unit 24 by the user via the terminal device 8 or the telephone 6, for example.
In the following description, the black list and the white list are set for each user (for each caller telephone number). However, the same black list and white list are set for a plurality of users (caller telephone numbers). You may make it share a list.

  The call reception unit 22 receives a call from the telephone 6 via the exchange and outputs the call to the call determination unit 23.

The call determination unit 23 refers to the call (caller telephone number) received via the call reception unit 22 and the black list and white list in the list storage unit 24, and calls the call destination telephone. Whether to transfer to 6 is determined.
That is,
(1) When the caller telephone number is registered in the black list, the call is not transferred to the callee telephone set 6. For example, the call is disconnected (discarded), or a message indicating that the call cannot be transferred to the caller telephone set 6 is received.
(2) When the caller telephone number is registered in the white list, the call transfer unit 25 is instructed to transfer the call to the callee telephone set 6.
(3) When the caller telephone number is not registered in the black list or the white list, the call transfer unit 25 is instructed to transfer (output) the call to the determination processing server 15.

  The call transfer unit 25 transfers a call to the call destination telephone 6 or outputs it to the determination processing server 15 in accordance with an instruction from the call determination unit 23.

  In this way, the incoming call distribution device 14 refers to the information in the list storage unit 24 to perform outgoing call distribution.

  Although not shown, the incoming call distribution device 14 includes an arithmetic processing unit such as a CPU (Central Processing Unit), a storage unit such as a hard disk device, and a call input unit that inputs and outputs calls. This is realized by a computer including an output unit and a data input / output unit for inputting / outputting data of the list storage unit 24. The call determination unit 23 described above is realized by the arithmetic processing unit executing a program stored in the storage unit. The list storage unit 24 is formed in a predetermined area of the storage unit described above.

Next, the determination processing server 15 will be described. The determination processing server 15 includes an incoming call unit 26, a nuisance call determination unit 271, an e-mail creation unit 272, a user information storage unit 281, a filter storage unit 282, an e-mail transmission unit 291, and an e-mail reception unit. 292 and the determination result reflection unit 30. It is assumed that a database 16 that stores an electronic certificate of each caller telephone number is connected to the determination processing server 15 via a data input / output unit (not shown). This electronic certificate is issued by a predetermined certificate authority, and is used when the e-mail creating unit 272 gives an e-mail signature (caller's signature).
The data in the database 16 may be stored in the incoming call control device 100.

  The incoming call unit 26 receives a call transferred from the incoming call distribution device 14, that is, a call from the telephone 6 having a telephone number that is not included in the black list or the white list, and receives the call from the caller's telephone 6. Accepts voice input. For example, the receiving unit 26 receives a call from the telephone 6, sends a message prompting the user of the telephone 6 (calling source) to input a voice like an answering machine service, and accepts a voice input from the user. The input voice is output to the nuisance call determination unit 271 as voice data. The voice data may be output collectively by the incoming call unit 26 when the voice input from the user is stored in the storage unit and the voice input is completed, or sequentially output in the input order. You may do it.

The nuisance call determination unit 271 refers to the nuisance call identification data 283 (described later) stored in the filter storage unit 282 to determine whether or not the content of the voice data is a nuisance call.
For example, the nuisance call identification data 283 is data indicating a typical character string appearing in the nuisance call and a threshold of appearance frequency of the character string for determining the nuisance call. The nuisance call determination unit 271 refers to the nuisance call identification data 283, calculates the appearance frequency of the character string in the input voice data, and determines that the call is a nuisance call when the calculation result exceeds a threshold value. Alternatively, a mathematical expression for calculating the degree of the nuisance call according to the appearance frequency of the character string is stored in the nuisance call identification data instead of the threshold value, and the nuisance call determination unit 271 refers to this expression. Thus, the degree of nuisance calls for the voice data may be calculated.
Here, the nuisance call determination unit 271 and the filter storage unit 282 will be described with reference to FIG. 3 (see FIGS. 1 and 2 as appropriate). FIG. 3 is a diagram illustrating the nuisance call determination unit and the filter storage unit of FIG.
The nuisance call determination unit 271 includes an electronic certificate confirmation unit 31, a nuisance call voice determination unit 32, a voice processing unit 33, and a nuisance call character string determination unit 34. The filter storage unit 282 includes voice identification data 36. And character string identification data 38 (hereinafter collectively referred to as nuisance call identification data 283).

  Upon receipt of the caller telephone number from the receiver 26, the electronic certificate confirmation unit 31 reads the electronic certificate of this telephone number from the database 16 using the caller telephone number as a key. Then, this electronic certificate is output to the e-mail creation unit 272.

  When the nuisance call voice determination unit 32 receives the voice data output from the incoming call unit 26, the nuisance call voice determination unit 32 refers to the voice identification data 36 to determine whether or not the content indicated by the voice data is a nuisance call. When the content indicated by the voice data is determined to be a nuisance call, the telephone number of the telephone 6 is output to the determination result reflecting unit 30 (details will be described later). On the other hand, if it is determined that the content indicated by the audio data is not a nuisance call, the audio data is output to the audio processing unit 33.

  Note that the voice identification data 36 is, for example, data indicating the feature amount of a nuisance call voice (or a voice that is not a nuisance call), and the nuisance call determination unit 271 refers to the voice identification data 36, Filter unwanted calls (silent calls, etc.).

The voice processing unit 33 converts the input voice data into text data. That is, the input voice data is recognized and analyzed, and the recognition result is appropriately corrected and converted to text data. Further, the voice processing unit 33 may analyze the emotion indicated by the input voice data. For example, emotion analysis is performed based on the feature amount of the voice and the like such that the speaker is angry, hurrying, or impatient. The emotion analysis result is added to the text data and output.
By doing in this way, the determination processing server 15 can convey to the user the speaker's emotion that cannot be understood only by text data.

When the nuisance call character string determination unit 34 receives the text data output from the voice processing unit 33, the nuisance call character string determination unit 34 refers to the character string identification data 38 to determine whether or not the content indicated by the text data is a nuisance call. If it is determined that the call is a nuisance call, the text data is discarded, the telephone number of the calling party, the telephone number of the calling party, information that this calling party telephone number should be registered in the blacklist, etc. (Determination result) is output to the determination result reflecting unit 30. On the other hand, if it is determined that the call is not a nuisance call, the text data is output to the e-mail creation unit 272.
In this way, the nuisance call determination by performing both the determination (filtering) of the nuisance call by voice by the nuisance call voice determination unit 32 and the determination (filtering) by the character string by the nuisance call character string determination unit 34 are performed. The determination accuracy of the nuisance call in the unit 271 can be improved.

  The character string identification data 38 indicates a character string of text data for determining that it is a nuisance call, and a list of character strings used in a previous nuisance call may be considered. For example, when receiving the text data, the nuisance call character string determination unit 34 counts how many character strings (keywords) shown in the character string identification data 38 are included in the text data. If the counted number of keywords exceeds a predetermined threshold, the nuisance call character string determination unit 34 determines that the text data is a nuisance call. The number of keywords may be an appearance rate in the text data (number of keywords / number of characters in the entire text data). Further, the character string identification data 38 is a set of nuisance call text data, and the nuisance call character string determination unit 34 compares the input text data with the character string of the character string identification data 38, and its tendency. May be statistically analyzed to calculate the possibility of a nuisance call.

  The filter storage unit 282 stores the nuisance call identification data 283 including the voice identification data 36 and the character string identification data 38 described above.

  Returning to the description of FIG. The user information storage unit 281 stores user information of users of this system. This user information is, for example, information indicating the user ID, telephone number, e-mail address, etc. of each user. This data is assumed to be input by the terminal device 8 or another input device via the IP communication network 18.

  The e-mail creation unit 272 includes the text data output from the nuisance call character string determination unit 34 in FIG. 3 and its emotion analysis result, and the electronic certificate of the caller telephone number output from the electronic certificate confirmation unit 31. And create an email. Then, this e-mail is output to the e-mail transmission unit 291. The e-mail creation unit 272 corresponds to the data creation unit in the claims. Further, this electronic mail corresponds to the transmission data in the claims.

  FIG. 4 is a diagram illustrating an email created by the email creation unit of FIG. As shown in FIG. 4, the e-mail includes a callee user ID (user name) indicated by reference numeral 401 and an e-mail address of the user, and caller identification information (user name) indicated by reference numeral 402. The caller telephone number indicated by reference numeral 405, such as the caller telephone number, the telephone content (text data) indicated by reference numeral 403, and the emotion analysis result indicated by reference numeral 404, is registered in the black list or registered in the white list. Information that prompts the user to make a selection input. Note that the user ID (user name) and e-mail address of the call destination indicated by reference numeral 401 are those searched by the e-mail creation unit 272 from the user information storage unit 281 using the call destination telephone number as a key. It is. Further, the telephone number of the user of the call destination may be attached to the area indicated by reference numeral 401. The caller identification information (user name) indicated by reference numeral 402 is given by the e-mail creation unit 272 based on the electronic certificate of the caller telephone number output from the electronic certificate confirmation unit 31. At this time, the fact that the validity of the caller telephone number has been confirmed may be described together. Further, if the electronic certificate for the calling telephone number cannot be obtained, information to that effect may be added to the electronic mail. The information indicated by reference numeral 405 may be information regarding whether or not the caller telephone number is registered in a black list and information regarding whether or not the caller telephone number is registered in a white list. .

2 transmits the email created by the email creation unit 272 to the terminal device 8 via the IP communication network 18 of FIG. The terminal device 8 receives the telephone contents by e-mail and displays them on a display device or the like. By doing in this way, the user can confirm the telephone contents filtered by the incoming call control device 100 with text data.
Then, the user determines (determines) from the contents of the e-mail whether the caller telephone number should be registered in the black list or the white list. When the terminal device 8 accepts the input of the determination result, the terminal device 8 includes the caller telephone number and the callee telephone number (or user ID) and transmits them to the determination processing server 15. The determination result at this time may be transmitted as a reply to the transmitted electronic mail, or may be transmitted to the determination processing server 15 by other methods. For example, the URL (Uniform Resource Locator) of the determination processing server 15 is described in an e-mail transmitted to the terminal device 8, and the user clicks the mouse of the terminal device 8 so that the terminal device 8 can determine the determination processing server. 15 may be accessed and input. The e-mail transmission unit 291 corresponds to the transmission unit in the claims.

  The e-mail receiving unit 292 receives the e-mail transmitted from the terminal device 8. Then, the determination result included in the e-mail is output to the determination result reflecting unit 30. The e-mail receiving unit 292 corresponds to the receiving unit in the claims.

  The determination result reflecting unit 30 reflects the received determination result on the list of the users. That is, the user list is searched from the call destination telephone number (or user ID) included in the determination result, and the caller telephone number is registered in the black list or white list. When the determination result output is received from the nuisance call determination unit 271, the caller telephone number is registered in the black list of the user.

  In this way, the determination processing server 15 can perform filtering of telephone contents from the telephone 6 having a telephone number that is not registered in the black list or the white list. Further, the result of this filtering can be reflected in the black list and the white list. When the determination result reflecting unit 30 updates the black list (or white list) in the list storage unit 24, the determination result reflecting unit 30 notifies the user terminal device 8 of the list update by the e-mail creating unit 272 and the e-mail transmitting unit 291. An e-mail may be transmitted. In this way, the user can know that his / her black list (or white list) has been updated.

The determination processing server 15 includes an arithmetic processing unit such as a CPU, a storage unit that stores various data and programs, an input / output interface that controls input and output of various data, a communication interface that performs communication with the IP communication network 18, and the like. It is implement | achieved by the computer provided with.
The above-described user information storage unit 281 and filter storage unit 282 are formed in a predetermined area of this storage unit. The storage unit stores a program that causes the determination processing server 15 to function. The arithmetic processing unit reads out and executes the program from the storage unit, thereby realizing the functions of the incoming call unit 26, the nuisance call determination unit 271, the e-mail creation unit 272, the determination result reflection unit 30, and the like. Note that the e-mail transmission unit 291 and the e-mail reception unit 292 are realized by a program execution process by a communication interface and an arithmetic processing unit. Although omitted from the description, it is assumed that the incoming call unit 26, the determination result reflecting unit 30, and the nuisance call determination unit 271 exchange data with an external device via an input / output interface.

<Description of operation>
Next, the operation of this system will be described with reference to FIGS. 1 to 4 and FIGS. 5 and 6 are sequence diagrams showing the operation of the nuisance call prevention system of FIG. FIG. 7 is a flowchart for explaining the nuisance call determination in S507 of FIG.

  First, the call reception unit 22 (see FIG. 2) of the incoming call distribution device 14 receives a call from the telephone 6 (S501). This call includes information indicating the caller telephone number and the callee telephone number. Next, the call determination unit 23 refers to the list storage unit 24 to determine whether or not the caller telephone number is registered in the user's blacklist of the callee telephone number (S502). Here, when the caller telephone number is registered in the user's black list (Yes in S502), the call determination unit 23 terminates the process, for example, by disconnecting the call. On the other hand, when the caller telephone number is not registered in the black list of the user (No in S502), the call determination unit 23 determines whether the caller telephone number is registered in the white list of the user. It is determined whether or not (S503). Here, when the caller telephone number is registered in the white list (Yes in S503), the call transfer unit 25 of the incoming call distribution device 14 transfers the call to the callee telephone 6 (S504). . On the other hand, when the caller telephone number is not registered in the white list (No in S503), the call transfer unit 25 transfers this call to the call destination determination processing server 15. The incoming call unit 26 of the determination processing server 15 receives the outgoing call transferred from the call transfer unit 25 (S505). This call includes information related to the caller telephone number and the callee telephone number received by the incoming call distribution device 14 in S501. Then, the incoming call unit 26 receives an input of voice from the caller telephone 6 (S506). Next, the nuisance call determination unit 271 determines whether or not the content of the call is a nuisance call based on the voice data received in S506 (S507). When the nuisance call determination unit 271 determines that the telephone content is not a nuisance call, the telephone content text data, the emotion analysis result, and the caller's electronic certificate are output to the e-mail creation unit 272. If it is determined that the call is a nuisance call, the caller telephone number is output to the determination result reflecting unit 30, and the telephone number is registered in the black list.

  The e-mail creation unit 272 creates an e-mail including a signature created based on the electronic certificate output from the nuisance call determination unit 271, text data of phone content, emotion analysis results, and the like, and the e-mail is sent to the terminal device 8. (S601 in FIG. 6). The e-mail includes information prompting selection input regarding whether the caller (caller's telephone number) is registered in the black list or the white list. The e-mail may include information such as a caller telephone number and a callee telephone number.

  The terminal device 8 displays the received electronic mail on a display device or the like, and the user checks the displayed electronic mail, thereby confirming the telephone content and the emotion of the speaker on the telephone. Then, the terminal device 8 is input to select whether the caller (caller's telephone number) is registered in the black list or the white list. For example, if the telephone number of the caller is to be registered in the white list, “OK” is input to the subject of the e-mail via the terminal device 8. On the other hand, if the telephone number of the caller is to be registered in the white list, “NG” is input to the subject of the e-mail via the terminal device 8. And the terminal device 8 transmits the electronic mail containing this determination result to the determination process server 15 (S602). The e-mail includes information for identifying the call destination (user ID and e-mail address of the call-destination user) and information for identifying the call source (caller's signature and telephone number). Etc.).

  The e-mail receiving unit 292 of the determination processing server 15 receives the e-mail (determination result) from the terminal device 8 (S603). Then, the determination result reflection unit 30 reflects the received determination result in the list of the user in the list storage unit 24 (S604). That is, when the determination result reflecting unit 30 receives the determination result, the determination result reflecting unit 30 accesses the list storage unit 24 of the incoming call distribution device 14 and stores the caller's source ID (or callee telephone number) in the list of callees. Add a phone number. For example, if the determination result received from the e-mail receiving unit 292 is “register in the black list” (for example, the subject of the e-mail is “NG”), the determination result reflecting unit 30 displays the black in the user list. Add the caller telephone number to the list field. On the other hand, if the received determination result is “register in the white list” (for example, the subject of the e-mail is “OK”), the caller telephone number is added to the white list field of the user list. .

  Thereafter, when the determination result reflection unit 30 completes the update of the black list (or white list) in the list storage unit 24, the list is updated to the terminal device 8 of the user by the e-mail creation unit 272 and the e-mail transmission unit 291. You may make it transmit the email which conveys.

Next, the nuisance call determination in S507 of FIG. 5 will be described with reference to FIG.
First, when the electronic certificate confirmation unit 31 (see FIG. 3) of the determination processing server 15 receives the caller telephone number from the receiving unit 26, it reads out the electronic certificate of this telephone number from the database 16 (S701). Output to the mail creation unit 272.

  Next, when receiving the voice data output from the incoming call unit 26, the nuisance call voice determination unit 32 refers to the voice identification data 36 and determines whether or not the voice indicates a nuisance call (S702). . Then, if the nuisance call voice determination unit 32 determines that this voice is a voice indicating a nuisance call (Yes in S702), the determination result reflection unit 30 registers the telephone number in the black list of the user (S706). . Thereafter, the determination processing server 15 may notify the user's terminal device 8 that the telephone number has been registered in the black list.

  On the other hand, when the nuisance call voice determination unit 32 determines that the voice is not a voice indicating a nuisance call (No in S702), the voice processing unit 33 converts the voice (voice data) into text data (S703). ). In addition, the voice processing unit 33 performs emotion analysis of the telephone content based on the text data (S704). Next, the nuisance call character string determination unit 34 refers to the character string identification data 38 to determine whether or not this text data indicates a nuisance call (S705). When the nuisance call character string determination unit 34 determines that the call is a nuisance call (Yes in S705), the process proceeds to S706, and the determination result reflection unit 30 registers the caller telephone number in the black list. On the other hand, when the nuisance call character string determination unit 34 determines that the text data does not indicate a nuisance call (No in S705), the text data and the emotion analysis result in S704 are output to the e-mail creation unit 272 ( S707).

  When the nuisance call prevention system performs the above-described processing, it is possible to prevent the nuisance call from being received at the telephone 6D of the user D who uses the nuisance call prevention service. In addition, since the contents of a telephone call that is unclear whether it is a nuisance call is received as text data, the user can also confirm the telephone contents other than the nuisance call. Since the judgment processing server 15 performs filtering of the telephone contents and creates a black list from the telephone number of the caller, or creates a black list and a white list based on a selection input from the user terminal device. The incoming call distribution device 14 can more effectively prevent unwanted calls.

<Other embodiments>
The present invention is not limited to the above-described embodiment and can be modified.
For example, the voice identification data 36 and the character string identification data 38 in FIG. 3 described above are common to all telephone contents, but those set for each user (personal filter) are used. May be. That is, even if the terminal device 8 or the like sets the voice identification data 36 for the user or the character string identification data 38 for the user in the filter storage unit 282 of the determination processing server 15. Good.

At this time, the nuisance call determination by the nuisance call determination unit 271 may use either a personal filter or a common filter (common filter) for all telephone contents, or a combination of both. May be used.
Here, the processing of the nuisance call voice determination unit 32 and the nuisance call character string determination unit 34 when both of the filters described above are used will be described with reference to FIG. FIG. 8 is a diagram conceptually showing processing of the nuisance call voice determination unit and nuisance call character string determination unit of FIG. 3 in another embodiment of the present invention.

  As shown in FIG. 8, the voice identification data 36 includes common voice identification data 361 and personal voice identification data 362. The character string identification data 38 also includes common character string identification data 381 and personal character string identification data 382.

  When the nuisance call voice determination unit 32 receives input of voice data from the incoming call unit 26, the nuisance call voice determination unit 32 first filters whether the call is a nuisance call using the common voice identification data 361. The voice data that is not determined to be a nuisance call by the common voice identification data 361 is filtered using the personal voice identification data 362 to determine whether or not it is a nuisance call (or the degree or probability of a nuisance call). Calculation).

  For example, voice data of a speaker for each caller telephone number (or caller identification information) is stored in the personal voice identification data 362, and this voice data is different from the input voice data. In some cases, or when it is not registered in the personal voice identification data 362 in the first place, the nuisance call voice determination unit 32 determines that the call is a nuisance call, or determines that there is a high possibility of being a nuisance call. . The nuisance telephone voice determination unit 32 performs voice processing on voice data that has been confirmed to be the voice of the caller of the caller by performing voice data filtering based on such personal voice identification data 362. Can be output to the unit 33. Note that the confirmation result of the voice data may be included in the email created by the email creation unit 272.

In addition, by registering in advance the telephone number and the voice data of the speaker in the database 16 by a company or the like, it is possible to increase the possibility of incoming to the other party's telephone. That is, it is possible to reduce the possibility that calls from this company are filtered as nuisance calls.
The voice processing unit 33 converts the voice data filtered by the personal voice identification data 362 into text data.

Subsequently, the nuisance call character string determination unit 34 uses the common character string identification data 381 and the personal character string identification data 382 for the text data output from the voice processing unit 33 in the same manner as the nuisance call voice determination unit 32 described above. Is used to filter whether the call is a nuisance call, and the text data determined not to be a nuisance call is output to the e-mail creation unit 272. Each personal filter is read from the filter storage unit 282 by the nuisance call voice determination unit 32 and the nuisance call character string determination unit 34 using the caller's telephone number, user ID, and the like as keys.
Further, even when the common filter and the personal filter are used as described above, the nuisance call determination unit 271 sends the caller's call to the determination result reflection unit 30 for any filter determined to be an nuisance call. Instructs the number to be registered in the blacklist.

  The personal character string identification data 382 is information indicating that the determination processing server 15 registers the caller telephone number in the black list as a determination result from the terminal device 8 in S603 of FIG. The determination result reflecting unit 30 creates the electronic mail transmitted to the terminal device 8 when the determination result is received as a telephone). In other words, the determination result reflecting unit 30 analyzes text data indicating the content of the telephone call determined as a nuisance call by the user, and extracts information used for the personal filter of the user.

  In this way, since the nuisance call determination unit 271 performs nuisance call filtering in a two-stage manner of the common filter and the personal filter, the accuracy of nuisance call filtering can be improved. Further, the nuisance call determination unit 271 can perform nuisance call filtering according to the user's preference.

  In addition, the black list and the white list in the list storage unit 24 described above are set for each user (for each caller telephone number), but are not limited thereto. For example, a common black list or white list may be used by a plurality of users, or such a common list may be combined with a list (personal list) set by each individual. In this way, it is possible to save time and effort for each user to set his own black list and white list. Further, each user's own personal list may be registered in the common list.

  Further, the black list in the list storage unit 24 may be exchanged (shared) among the plurality of incoming call control devices 100. For example, the e-mail transmission unit 291 of the incoming call control device 100 transmits the black list in the list storage unit 24 to another incoming call control device 100, and the incoming call control device 100 as the transmission destination transmits this black list to the common black list or individual. To be registered on the blacklist. Registration at this time is performed when the incoming call control device 100 of the transmission destination once receives the black list by the e-mail receiving unit 292, and the determination result determination unit 30 registers the received black list in the list storage unit 24. Is called.

By doing in this way, each incoming call control device 100 can also obtain a black list from another incoming call control device 100 (communication carrier), so that it is possible to improve the accuracy of filtering unwanted calls. That is, it is possible to more effectively prevent unwanted calls.
When the incoming call control device 100 registers in the personal black list, a message confirming black list registration is transmitted to the terminal device 8 of the user of the registration destination, and a response permitting the black list registration. Register when you receive.

  In addition, the incoming call control device 100 has been described as being configured by two devices, the incoming call distribution device 14 and the determination processing server 15, but it may be configured as a single device.

  Further, the system may further include a charging server for charging the usage fee of the system to each user. By doing so, the telecommunications carrier can increase sales and profits by providing a nuisance call prevention service.

  In the above-described embodiment, the nuisance call determination unit 271 performs nuisance call filtering using both the voice identification data 36 and the character string identification data 38. However, the nuisance call determination unit 271 performs filtering using only one of them. It may be.

  The determination processing server 15 according to the present embodiment can be realized by a program for executing the processing as described above, and can be provided by storing the program in a computer-readable storage medium. It is also possible to provide the program through a network.

It is a figure which shows the structure of the nuisance call prevention system of this Embodiment. It is the block diagram which expanded and showed the function of the incoming call control apparatus of FIG. It is a figure explaining the troublesome telephone determination part and filter memory | storage part of FIG. It is the figure which illustrated the email which the email preparation part of FIG. 2 produces. It is a sequence diagram which shows operation | movement of the nuisance call prevention system of FIG. It is a sequence diagram which shows operation | movement of the nuisance call prevention system of FIG. 6 is a flowchart illustrating annoying call determination in S507 of FIG. It is the figure which showed notionally the process of the troublesome telephone voice determination part of FIG. 3 and the troublesome telephone character string determination part in other embodiment of this invention.

Explanation of symbols

6 (6A, 6B, 6C, 6D) Telephone 8 Terminal device 14 Incoming call distribution device 15 Judgment processing server 16 Database 18 IP communication network 19 PSTN network 22 Call acceptance unit 23 Call judgment unit 24 List storage unit 25 Call transfer unit 26 Incoming unit 30 Judgment Result Reflecting Unit 31 Electronic Certificate Confirming Unit 32 Nuisance Call Voice Judgment Unit 33 Voice Processing Unit 34 Nuisance Phone Character String Judgment Unit 36 Voice Identification Data 38 Character String Identification Data 100 Incoming Control Device 271 Junk Call Judgment Unit 272 E-mail creation Department (Data Creation Department)
281 User information storage unit 282 Filter storage unit 283 Nuisance call identification data 291 E-mail transmission unit (transmission unit)
292 E-mail receiver (receiver)
361 Common voice identification data 362 Personal voice identification data 381 Common character string identification data 382 Personal character string identification data

Claims (10)

An incoming call control device that prevents annoying incoming calls to a predetermined telephone,
A list for storing, for each telephone number of the telephone, a black list indicating a caller telephone number that does not make an incoming call to the telephone and a white list showing a caller telephone number that makes an incoming call to the telephone A storage unit;
A call acceptance unit for accepting calls from telephones via a telephone network;
A call determination unit for determining whether a caller telephone number in the call is included in the blacklist or the whitelist of a callee telephone number in the call;
An incoming unit that receives a call from a telephone with a telephone number not included in the blacklist or the whitelist, and receives input of voice data from the caller telephone;
A filter storage unit for storing nuisance call identification data indicating character string data included in the nuisance call;
A nuisance call determination unit that determines whether or not the content of the voice data is a nuisance call based on the presence or absence of a character string indicated in the nuisance call identification data;
In the nuisance call determination unit, when it is determined that the content of the voice data is a nuisance call, a determination result reflection unit that registers the caller telephone number in the black list;
An incoming call control device comprising: A call transfer unit that transfers the call to a destination telephone;
The call determination unit
When it is determined that the caller telephone number in the call is included in the black list of the callee telephone numbers in the call, the call is discarded,
When it is determined that the caller telephone number in the call is included in the white list of the callee telephone numbers in the call, the call transfer unit transfers the call to the callee telephone. The incoming call control device according to claim 1, wherein an instruction is given. In the nuisance call determination unit, when it is determined that the content of the voice data is not a nuisance call, a data creation unit that creates transmission data including data obtained by converting the voice data into text,
A transmission unit for transmitting the created transmission data to a terminal device of a user of the call destination telephone;
The incoming call control device according to claim 1, further comprising: Whether the content of the voice data is determined not to be a nuisance call in the nuisance call determination unit, whether the voice data is converted into text and whether the caller telephone number is registered in the blacklist A data creation unit that creates data for transmission including information that prompts selection input;
A transmission unit for transmitting the created transmission data to a terminal device of a user of the call destination telephone;
A receiving unit for receiving a selection input as to whether or not to register the caller telephone number in the blacklist from the terminal device;
Further comprising
The determination result reflection unit
The call source telephone number is registered in the black list based on the selection input when a selection input for registering the call source telephone number in the black list is received. The incoming call control device according to claim 2. When the content of the voice data is determined not to be a nuisance call in the nuisance call determination unit, the voice data is converted into text and the caller telephone number is registered in the black list or the white list A data creation unit that creates data for transmission including information prompting to select whether to register with,
A transmission unit for transmitting the created transmission data to a terminal device of a user of the call destination telephone;
A receiving unit for receiving a selection input for registering the caller telephone number in the black list or the white list from the terminal device;
Further comprising
The determination result reflection unit
The incoming call control device according to claim 1 or 2, wherein the caller telephone number is registered in either the black list or the white list based on the selection input. The nuisance call determination unit
A nuisance call voice determination unit that determines whether or not the input voice data is a nuisance call based on a feature amount of the input voice data, and outputs voice data that is determined not to be the nuisance call;
A voice processing unit for converting the output voice data into text data;
And determining whether or not the content of the voice data is a nuisance call based on the presence or absence of a character string indicated in the nuisance call identification data in the converted text data. The incoming call control device according to claim 5. A user information storage unit for storing user information indicating the user's e-mail address for each user phone number;
The data creation unit
When the content of the voice data is determined not to be a nuisance call in the nuisance call determination unit, the voice data includes data obtained by converting the voice data into text, and the user's e-mail address of the call destination telephone number is addressed to Create an email with
The transmitter is
The incoming call control device according to any one of claims 3 to 6, wherein the created electronic mail is transmitted via a network. The data creation unit
For each telephone number, an e-mail with the signature of the caller telephone number is created based on the electronic certificate of the caller telephone number read from the database storing the electronic certificate of the telephone number The incoming call control device according to claim 7. An incoming call control method using an incoming call control device that prevents annoying incoming calls to a predetermined telephone,
A list for storing, for each telephone number of the telephone, a black list indicating a caller telephone number that does not make an incoming call to the telephone and a white list showing a caller telephone number that makes an incoming call to the telephone The incoming call control device comprising: a storage unit; and a filter storage unit that stores nuisance call identification data indicating character string data included in the nuisance call.
Receiving a call from a telephone via a telephone network;
Determining whether a caller telephone number in the call is included in the blacklist or whitelist of callee telephone numbers in the call;
Receiving a call from a telephone having a telephone number not included in the blacklist or the whitelist, and receiving input of voice data from the caller telephone;
Determining whether the content of the voice data is a nuisance call based on the presence or absence of a character string indicated in the nuisance call identification data;
When it is determined that the content of the voice data is a nuisance call, the caller telephone number is registered in the black list;
An incoming call control method comprising: The transmitter is
Send the black list stored in the list storage unit to another incoming call control device,
The receiver is
Receive the black list stored in this incoming call control device from another incoming call control device,
The incoming call control device according to any one of claims 4 to 8, wherein the determination result reflecting unit registers the received black list in the list storage unit.

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